Adjusted oscillator strength matching for hybrid magnetic and electric excitations in Dy3Fe5O12 garnet
- Authors
- Rogers, P. D.; Choi, Y. J.; Standard, E. C.; Kang, T. D.; Ahn, K. H.; Dubroka, A.; Marsik, P.; Wang, Ch.; Bernhard, C.; Park, S.; Cheong, S. -W.; Kotelyanskii, M.; Sirenko, A. A.
- Issue Date
- May-2011
- Publisher
- AMER PHYSICAL SOC
- Citation
- PHYSICAL REVIEW B, v.83, no.17
- Journal Title
- PHYSICAL REVIEW B
- Volume
- 83
- Number
- 17
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/21542
- DOI
- 10.1103/PhysRevB.83.174407
- ISSN
- 1098-0121
2469-9969
- Abstract
- Far-infrared spectra of magnetodielectric Dy3Fe5O12 garnet were studied using a combination of transmittance, reflectivity, and rotating analyzer ellipsometry. In addition to purely dielectric and magnetic modes, we observed several hybrid modes with a mixed magnetic and electric dipole activity. Using 4 x 4 matrix formalism for materials with mu(omega) not equal 1, we modeled the experimental optical spectra and determined the far-infrared dielectric and magnetic permeability functions. The matching condition mu(omega(h))S-e = epsilon(omega(h))S-m for the oscillator strengths S-e(m) explains the observed vanishing of certain hybrid modes omega(h) in reflectivity.
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Collections - College of Natural Sciences > Department of Physics > 1. Journal Articles
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